National Science Olympiad Forum By SOF Olympiad Trainer - Page 458

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Hey there i cant understand that stage p is afectted by staget

Ans 2:

Class : Class 8
i and iii is correct,not i and iv

Ans 3:

Class : Class 7

Ans 4:

Class : Class 9
A is wrong sunlight is needed in stage Q

Ans 5:

Class : Class 5
iii and iv are correct.

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5
d is the right answer because when the plant in inside the seed it need air water warmth so it is only in option d

Ans 8:

Class : Class 5

Ans 9:

Class : Class 5
A

Ans 10:

Class : Class 8
Step 1: option iv is correct and option iv is in option a

Ans 11:

Class : Class 10
The answer is b because photosynthesis starts when the plant comes out of the seed and p does not get affected by what is affecting the stage T of the plant

Ans 12:

Class : Class 5
A

Ans 13:

Class : Class 5
qwertyuiopasdfghjklzxcvbnm,./;'[]\=-0987654321` _)(*

Ans 14:

Class : Class 9
Please explain this question to me Revisewise Expert.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Thanks

Ans 2:

Class : Class 6
The answer is D as 1.Rusting Is slow change as it takes a long time for Iron to rust.2.Rusting Is also a chemical change as many chemical reactions occur in The Rusting process 3.Rusting is a Irreversible change as we can not change the effect of rustingThank youI hope I proved to be some help

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 7
It's incorrect

Ans 3:

Class : Class 8
When u know all the answers then what is the need to ask us??

Ans 4:

Class : Class 7
don't protest

Ans 5:

Class : Class 7
P shows the knee joint. The knee joint is a hinge joint, which allows movement along one axis only, to flex or to extend.Q shows a joint where our neck joins the head. It is a pivotal joint. It allows us to bend our head forward and backward and turn the head to our right or left.Now, let’s check the given options and find the incorrect one regarding these two joints:A. Joint P allows movement in one direction only. ----- Correct. Joint P is a hinge joint, which allows movement along one axis only, to flex or to extend.B. Joint Q allows movement in many planes. ----- Correct. Joint Q allows us to bend our head forward and backward and turn the head to our right or left.C. Knee bones have two P joints. ----- Incorrect. Knee bones have just one hinge joint.D. Joint Q acts like a pivot and allows the circular motion of the part around it. ----- Correct. We can move our head around in circular motion at the neck joint.Hence, Option C is the right answer.

Ans 6:

Class : Class 4
Very confusing.

Ans 7:

Class : Class 8
Actually the image shown of knee is resembling to shoulder bones that's why its so confusing

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
The answer should be D as all the options except D have a circular point.metal rings also have circle shape for fitting of fingers but they are hollow and let Light pass through it and as we know Light only passes through Opaque objects.

Ans 2: (Master Answer)

Class : Class 1

Ans 3:

Class : Class 8
No, it's d

Ans 4:

Class : Class 3
NO !!!!!! THE ANS IS C!!!!

Ans 5:

Class : Class 6
It will be D !!!!!!!!!!

Ans 6:

Class : Class 7
wow

Ans 7:

Class : Class 6
Logically it should be C

Ans 8:

Class : Class 7
From the image, we can say that the image is formed by a round opaque object. Now, let’s check the following objects and find the one which will not form the above shadow:A. An egg ----- An egg is oval in shape, but if the source of light is placed at either of the ends, the shadow formed would be round.B. A vase ----- A vase can have any size and shape, but usually a regular vase has rounded edges. So, if source of light is placed at either of the ends, the shadow formed would be round.C. A cone ----- A cone has a pointed end, and a flat rounded end. So, if a source of light is placed at either of the ends, the shadow formed would be round.D. A metal ring ----- A metal ring is round, but hollow in between, so light would pass through the central part. So, the shadow formed by the ring will be a round hollow.Hence, the right answer is Option D.

Ans 9:

Class : Class 6
the answer according to the question is wrong

Ans 10:

Class : Class 8
it!!!!!!!!!!! is!!!!!!!!!! ddddddddddddddddddddddd!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 11:

Class : Class 10
The answer is D.

Ans 12:

Class : Class 6
Ans from the question is wrong. the hollow part will allow light to pass and thus the given shadow will not be formed

Ans 13:

Class : Class 6
it should be c. how can it be d as it is hollow at the center?

Ans 14:

Class : Class 8

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 1
the answer is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7

Ans 4:

Class : Class 7
Seed drill is a tool used for sowing seeds in agriculture. It has a funnel shaped part where seeds are put in. These seeds are buried deep in the soil through hollow pipes.So b is the answer

Ans 5:

Class : Class 7
B is the answer to this question but it is showing C as correct option

Ans 6:

Class : Class 8
B is the answer

Ans 7:

Class : Class 6
shouldn;t the correct ans be B?

Ans 8:

Class : Class 5
It should be B

Ans 9:

Class : Class 5
Both fern and mushroom have spores.Both A and B can be correct

Ans 10:

Class : Class 10
C is the correct option as it is saying what is used for 'agriculture'

Ans 11:

Class : Class 6
Think the the option should be (b)

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